You won't reach 3.0 GHz with a Phenom 9150e, and you'd be lucky to even reach 2.4 GHz.
Just wondering if it was worth trying one out and getting more performance out of it than my current C2D at 3.0GHz. Would a Phenom II at 2.5GHz match a C2D at 3.0GHz in gaming benchmarks?
The Phenom 9150, like mentioned, is not a Phenom II processor. However considering you have an Allendale processor at 3.0 GHz, if you did have a Phenom (I, not II) at 2.5 GHz, it should match your current gaming performance and will definitely exceed it if you play a game which can take advantage of the extra two cores on a Phenom X4.
Originally posted by: LoneNinja
C2D is faster than Phenom II, and the majority of games can't use more than 2 cores. You'll loose performance in most games going from a 3.0Ghz C2D to a 2.5Ghz Phenom II.
You forget to take into account he has an E4300. It only has 2MB of L2 cache, which hurts its gaming performance. A Phenom X4 (either the first generation or the Phenom II) @ 2.5 GHz will match an Allendale @ 3.0 GHz. I don't have direct numbers, but here's the best I could do.
My assumption: The difference in clock speed between these proposed processors is such that the E4300 has about a 22% advantage. AT's benches don't have C2D with 2MB L2 cache processors clocked that high, so I'm going to substitue in a lower clocked Phenom and a lower clocked C2D but keeping that same 22% advantage.
So I'm going to the lowly Phenom 9650, which runs at 2.3 GHz. The Core 2 Duo will need to run at approximately 2.8 GHz to keep the 22% clock speed discrepancy. Since there are no 65nm Allendale processors with that clock speed in AT's bench, I'm going to substitute yet again a newer 45nm Pentium Dual Core. If you look at the benches, clock for clock the 45nm Pentium Dual cores basically perform the same as the Allendale processors in gaming applications
. To verify just compare the E4600 vs. E5200 vs. E4700. You'll see the frames per second are very, very close.
So in my substitution, I'm going to use the new E6300, although I do believe proportionally speaking it's faster than the Pentium Dual cores and Allendales***. And the results: http://www.anandtech.com/bench...126.96.36.199.188.8.131.52
They are a mixed bag. Some games favor more cores, some games favor better clock speed. Regardless of this statement, the frames per second are pretty close such that when the graphical load is put on the GPU I feel as if a Phenom X4 @ 2.5 GHz will indeed give someone the same gaming experience as an Allendale Core 2 Duo @ 3 GHz.
***Footnote: By that I mean it seems it performs better per clock than the other processors. IThe E6300 holds a 7.7% clockspeed advantage over the E5300, yet it holds a greater performance advantage in some of the gaming tests. http://www.anandtech.com/bench...184.108.40.206.220.127.116.11
In Crysis, the E6300 is 11% faster. In L4D and Far Cry 2, it's 15% faster. I'm not sure what is causing this. It might be the FSB speed. If true, then these would bring me previous findings into better light as this user has an overclocked processor in which the FSB is higher than normal.